By Jenny Wells and Alicia Gregory
Sustainability and coal mining don't typically go hand in hand, but a project at the University of Kentucky is offering an opportunity to bring the two together.
At least that is the hope of Jack Groppo and Jim Hower, research professors at the UK Center for Applied Energy Research (CAER), where they are locating and evaluating rare earth elements (REEs) found in coal and processing coal byproducts.
REEs are a series of 17 elements within the Earth's crust. Due to their unique chemical properties, REEs are essential components of technologies spanning a range of applications, including smartphones, batteries and defense technologies.
They are also used in renewable energy technologies, like wind turbines and solar panels.
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